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蚕豆属于豆科作物,对硼的需要量仅次于棉花、油菜。在缺硼土壤上对蚕豆喷硼有显著的增产效果。据我县试验:土壤有效硼含量为0.256ppm,在蚕豆蕾、花期间喷硼两次,比对照(不喷硼)每亩增产15.1—51.5斤,平均每亩增产31斤,增产率为14％,增产幅度为6.5—23.1％;每亩除去成本费0.35元,净增收入4.61元。施硼后考察其产量结构有如下变化:单株结荚平均增加0.03个,百粒重提高0.38克,单荚粒数平均多0.1粒。可见蚕豆喷硼是一项投资小,花工少,
Broad beans belong to leguminous crops, the demand for boron is second only to cotton, rapeseed. Boron in the boron-deficient soil on the boron spray significantly increased production. According to my county test: soil available boron content of 0.256ppm, in the faba bean bud, spray boron twice during the flower, compared with the control (no boron spray) yield 15.1-51.5 kg per mu, an average yield of 31 kg per mu, the yield was 14 %, Increase rate of 6.5-23.1%; remove the cost of 0.35 yuan per mu, net income 4.61 yuan. After the boron application, the yield structure of the plant was changed as follows: the average pod per plant increased by 0.03, the grain weight increased by 0.38 g, and the average number of single pods was 0.1. Visible broad bean boron spray is a small investment, less flower workers,